CN205748951U - A kind of external integrated test system of ventricular assist device - Google Patents
A kind of external integrated test system of ventricular assist device Download PDFInfo
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- CN205748951U CN205748951U CN201620437816.5U CN201620437816U CN205748951U CN 205748951 U CN205748951 U CN 205748951U CN 201620437816 U CN201620437816 U CN 201620437816U CN 205748951 U CN205748951 U CN 205748951U
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Abstract
This utility model provides a kind of external integrated test system of ventricular assist device, relate to medical instruments field, the problem that ventricular assist device can only do the test of some single performances for solving existing in-vitro simulated closed circuit, this integrated test system includes computer, data collecting system, drive system and simulation blood circulator circuit；Described computer is connected with described data collecting system and drive system；Described blood circulation simulating system is connected with described data collecting system and drive system；Computer passes through the heart working state of data collecting system monitoring simulation blood circulator circuit simulation, and the duty in the loop simulated according to the driving control instruction of user by drive system control simulation blood circulator circuit.In such scheme, various people's blood circulation characteristic under various physiological statuss can be simulated, may be implemented in the external integration test purpose to left ventricular assist device, right ventricular assist device and diplocardia auxiliary device.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of external integration test of ventricular assist device
System.
Background technology
Ventricular assist device can be used to provide auxiliary to patients with heart failure, alleviates the burden of original heart, such as
Blood can be extracted out, then at certain pressure reduction by left ventricular assist device LVAD from natural heart left ventricle
Under (such as 10～120mmHg), pump out certain blood with certain flow (such as 2～7L/min)
Enter human body artery, thus alleviate the work load of nature heart, reach the effect of ventricle auxiliary.
The performance quality of ventricular assist device is closely bound up with patients ' lives, needs strict test.But such as
Fruit test experiments every time all uses animal to carry out internal test, necessarily wastes time and energy and costs dearly.If will
Ventricular assist device is contained on in-vitro simulated closed circuit and tests, then can be easily to experiment knot
Fruit carries out reappearing and studying, and optimizes product parameters, shortens the R&D cycle.
The research and development just having carried out in-vitro simulated blood circulation in the world at the beginning of developing ventricular assist device are next right
Ventricular assist device carries out performance test.But great majority are all to be simulated back ventricular assist device itself
The structure on road, does not accounts for the work process of nature heart, it is difficult to assessment nature heart and ventricular assist device
Between influence each other.Also part research institution is had to use the principle of elastic cavity inflation to simulate nature heart
Pump blood.It is single that ventricular assist device all can only be done some by the most most in-vitro simulated closed circuit
Performance test.Therefore it is badly in need of a kind of ventricular assist device vitro test system, ventricular assist device is done comprehensive
Performance test.
Utility model content
Ventricular assist device can only be done the survey of some single performances to solve existing in-vitro simulated closed circuit
The problem of examination, this utility model provides a kind of external integrated test system of ventricular assist device, can simulate all kinds of
Crowd's blood circulation characteristic under various physiological statuss, is concurrently accessed left ventricular assist device, right heart auxiliary dress
Put and after diplocardia auxiliary device, can easily the discharge characteristic of acquisition device itself, pressure characteristic etc. and its
With influencing each other of blood circulator circuit, reach the purpose of integration test external to ventricular assist device.
The external integrated test system of a kind of ventricular assist device that this utility model provides, including computer, number
According to acquisition system, drive system and simulation blood circulator circuit；Described computer and described data collecting system
Connect with drive system；Described blood circulation simulating system connects with described data collecting system and drive system
Connect；
The force value of each predetermined point in blood circulator circuit is simulated described in described data collecting system Real-time Collection
With the flow value of liquid in return, and the force value collected and flow value are sent to described calculating
Machine；
Described drive system receives the driving control instruction that described computer is sent, and adjusts according to this control instruction
Save contraction frequency and the VE of the heart of simulation in described simulation blood circulator circuit；
Described computer receives and shows force value and flow value that described data collecting system sends and passes through
Human-computer interaction interface is supplied to user, and receives tester and drive control instruction；
Described simulation blood circulator circuit has the closed-loop path of liquid-working-medium in being one, for simulation with
Heart is the blood circulation of human body system of main body.
Wherein, described simulation blood circulator circuit includes:
First container of simulation left atrium；
Simulation links left atrium and mitral first valve of left ventricle, described first valve input and described the
One container outfan connects；
The second container of simulation left ventricle, the input of described second container connects with the outfan of described first valve
Connect；
Simulation connects the second valve of the aortic valve of left ventricle and aorta, and described second valve input is with described
First outfan of second container connects；
3rd container of simulated aorta, the first input end of described 3rd container and the output of described second valve
End connects；
The first-class gauge of fluid flow in monitoring aorta, the input of described first-class gauge and institute
The outfan stating the 3rd container connects；
Blood first electromagnetic throttle valve of suffered resistance when human body flows that simulated aorta flows out, described
The input of the first electromagnetic throttle valve is connected with the outfan of described first-class gauge；
4th container of simulation right atrium, the input of described 4th container and described first electromagnetic throttle valve
Outfan connects；
Simulation links right atrium and tricuspid 3rd valve of right ventricle, described 3rd valve input and described the
Four container outfans connect；
5th container of simulation right ventricle, the input of described 5th container connects with the outfan of described 3rd valve
Connect；
Simulation connects right ventricle and the 4th valve of Pulmonic valve of pulmonary trunk, and described 4th valve input is with described
First outfan of the 5th container connects；
Simulate Pulmonic 6th container, the first input end of described 6th container and the output of described 4th valve
End connects；
The second gauge of fluid flow in monitoring pulmonary artery, the input of described second gauge and institute
The outfan stating the 6th container connects；
Blood second electromagnetic throttle valve of suffered resistance when human body flows that test lung tremulous pulse flows out, described
The input of the second electromagnetic throttle valve is connected with the outfan of described first-class gauge, outfan and described first
The input of container connects.
Wherein, piston and displacement transducer, described second container it are provided with in described second container and the 5th container
In piston, piston in the 5th container can control by the first electromagnetic throttle valve, the second electromagnetic throttle valve respectively
Compressed air-driven or directly driven by electric cylinder or cylinder；
Piston in described second/the 5th container moves up and down in the second/the 5th container and drives described simulation blood
Liquid-working-medium flowing in liquid closed circuit, realizes closed loop control by described displacement transducer.
Wherein, described first-class gauge and second flow are calculated as electromagnetic type or ultrasonic type effusion meter.
Wherein, the measurement scope of described first-class gauge and second gauge is-5～15L/min.
Wherein, all parts of described simulation blood circulator circuit is connected by pipeline, described pipe connection portion
Divide and use threeway or four-way connection.
Wherein, described simulation blood circulator circuit also includes that several are installed on the threeway/four-way at predetermined point
Pressure transducer on joint, for measuring the pressure of each predetermined point.
Wherein, the measurement scope of described pressure transducer is-50～200mmHg.
Wherein, the liquid in described simulation loop loop uses human blood or animal blood or water-glycerol to mix
Compound simulation blood.
Wherein, the external integrated test system of described ventricular assist device also includes left ventricular assist device and/or the right side
Heart auxiliary device；The input of described left ventricular assist device is connected with the second outfan of described second container,
Second input of outfan and the 3rd container connects；The input of described right ventricular assist device and the described 5th
Second outfan of container connects, and the second input of outfan and the 6th container connects.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, it is provided that the ventricular assist device test system of in-vitro simulated natural heart, not only may be used
To realize the testing in vitro of ventricular assist device, save testing cost and difficulty, and various people can be simulated
Blood circulation characteristic under various physiological statuss, be concurrently accessed left ventricular assist device, right ventricular assist device and
After diplocardia auxiliary device, can easily the discharge characteristic of acquisition device itself, pressure characteristic etc. and itself and blood
Influencing each other of liquid closed circuit, reaches the purpose to ventricular assist device integration test.
Accompanying drawing explanation
A kind of ventricular assist device external integrated test system knot that Fig. 1 provides for this utility model embodiment
Structure schematic diagram.
[description of reference numerals]
1, simulation blood circulator circuit；
2, data collecting system；
3, drive system；
4, computer；
5, the first container；
6, the first valve；
7, second container；
8, the second valve；
9, the 3rd container；
10, first-class gauge；
11, the first electromagnetic throttle valve；
12, the 4th container；
13, the 3rd valve；
14, the 5th container；
15, the 4th valve；
16, the 6th container；
17, second gauge；
18, the second electromagnetic throttle valve；
19, left ventricular assist device；
20, right ventricular assist device.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, below will knot
Conjunction drawings and the specific embodiments are described in detail.
The external integrated test system of a kind of ventricular assist device provided for this utility model embodiment such as Fig. 1
Structural representation, this system includes computer 4, data collecting system 2, drive system 3 and simulation blood
Closed circuit 1；Computer 4 is connected with data collecting system 2 and drive system 3；Simulation blood circulation system
System 1 is connected with data collecting system 2 and drive system 3.
Data collecting system 2 Real-time Collection simulates force value and the loop of each predetermined point in blood circulator circuit 1
The flow value of liquid in pipeline, and the force value collected and flow value are sent to computer 4.
Drive system 3 receives the driving control instruction that computer 4 is sent, and regulates mould according to this control instruction
Intend contraction frequency and the VE of the heart of simulation in blood circulator circuit 1.
Computer 4 receives and the force value sent of video data acquisition system 2 and flow value by man-machine friendship
Mutually interface is supplied to user, and receives tester and drive control instruction.
Simulation blood circulator circuit 1 has the closed-loop path of liquid-working-medium in being one, for simulation with the heart
The dirty blood circulation of human body system for main body.
Preferably, as shown in fig. 1, simulation blood circulator circuit 1 includes:
First container 5 of simulation left atrium；
Simulation links left atrium and mitral first valve 6 of left ventricle, its input and the first container 5
Outfan connects；
The second container 7 of simulation left ventricle, the outfan of its input and the first valve 6 connects；
Simulation connects the second valve 8 of the aortic valve of left ventricle and aorta, its input and second container 7
First outfan connect；
3rd container 9 of simulated aorta, the outfan of its first input end and the second valve 8 connects；
The first-class gauge 10 of fluid flow, its input and the 3rd container 9 in monitoring aorta
Outfan connects；
Blood first electromagnetic throttle valve 11 of suffered resistance when human body flows that simulated aorta flows out,
Its input is connected with the outfan of first-class gauge 10；
4th container 12 of simulation right atrium, the outfan of its input and the first electromagnetic throttle valve 11 connects；
Simulation links right atrium and tricuspid 3rd valve 13 of right ventricle, its input and the 4th container 12
Outfan connects；
5th container 14 of simulation right ventricle, the outfan of its input and the 3rd valve 13 connects；
Simulation connects right ventricle and the 4th valve 15 of Pulmonic valve of pulmonary trunk, its input and the 5th container
First outfan of 14 connects；
Simulating Pulmonic 6th container 16, the outfan of its first input end and the 4th valve 15 connects；
The second gauge 17 of fluid flow, its input and the 6th container 16 in monitoring pulmonary artery
Outfan connects；
Blood second electromagnetic throttle valve 18 of suffered resistance when human body flows that test lung tremulous pulse flows out,
Its input is connected with the outfan of first-class gauge 17, and the input of outfan and the first container 5 connects.
Preferably, be provided with in simulation left ventricle and the second container 7 of right ventricle and the 5th container 14 piston and
Displacement transducer, the piston in second container 7, the piston in the 5th container 14 can be respectively by the first electromagnetism
The compressed air-driven or direct by electric cylinder or cylinder band that choke valve 11 and the second electromagnetic throttle valve 18 control
Dynamic.
Piston in second container 7/ the 5th container 14 moves up and down band in second container 7/ the 5th container 14
Dynamic model intends the liquid-working-medium flowing in blood circulator circuit 1, realizes closed loop control by displacement transducer
System, simulation is beating of left atrium and right atrium, is also that in whole analog loopback, the power of liquid flowing comes
Source.
As it has been described above, whole simulation loop is returned by computer 4 by data collecting system 2 and drive system 3
Road 1 is monitored and controls.The simulation blood pressure of each pressure spot can be monitored in real time by data collecting system 2,
The left heart and the flow of the right heart can be monitored.Can control to simulate left ventricle and right ventricle by drive system 3
The movement travel of the piston in second container 7 and the 5th container 14 and frequency, this is permissible by computer 4
Regulation easily, i.e. means can simulate various people (adult, child) very easily at different conditions
The contraction frequency (heart rate) of heart and VE (corresponding blood pressure) time (have a rest, move).
Wherein, first-class gauge 10 and second gauge 17 are chosen as electromagnetic type or ultrasonic type effusion meter.Excellent
Selection of land, the measurement scope of first-class gauge 10 and second gauge 17 is-5～15L/min.
Preferably, all parts of simulation blood circulator circuit 1 is connected by pipeline, and piping connection portion is adopted
With threeway or four-way connection, the interface installing pressure transducer can be reserved.
Preferably, simulation blood circulator circuit 1 also includes that several are installed on the threeway/four-way at predetermined point
Pressure transducer on joint, for measuring the blood pressure simulated at the most each predetermined point of pressure of each predetermined point.
Preferably, the pressure transducer selecting measurement scope to be-50～200mmHg.
Liquid-working-medium (blood i.e. simulated) in simulation loop loop 1 flows to such as arrow institute in Fig. 1
Show.Preferably, the liquid-working-medium in simulation loop loop 1 uses human blood or animal blood or water
The simulation blood such as-glycerol mixture.
Preferably, as shown in fig. 1, the external integrated test system of ventricular assist device also includes Left ventricle assist
Device 19 and/or right ventricular assist device 20；The of the input of left ventricular assist device 19 and second container 7
Two outfans connect, and the second input of outfan and the 3rd container 9 connects；Right ventricular assist device 20
Second outfan of input and the 5th container 14 connects, outfan and the second input of the 6th container 16
Connect.
To sum up, if ventricular assist device to be studied access after the discharge characteristic of device itself, pressure characteristic etc.
And its impact with blood circulator circuit, then as long as will according to actual needs by left ventricular assist device 19 or
Right ventricular assist device 20 accesses in loop.The control of ventricular assist device drives and can be assisted by ventricle
The controller that device is provided for oneself controls, and simulates practical situations the most completely.Ventricular assist device is passed in and out
The data collecting system 2 of the system that the pressure measxurement of mouth and flow measurement can be provided by this utility model
Complete, it is also possible to the controller carried by ventricular assist device completes, in the light of actual conditions demand-driven.
In such scheme, it is provided that the ventricular assist device test system of in-vitro simulated natural heart, not only may be used
To realize the testing in vitro of ventricular assist device, save testing cost and difficulty, and various people can be simulated
Blood circulation characteristic under various physiological statuss, be concurrently accessed left ventricular assist device, right ventricular assist device and
After diplocardia auxiliary device, can easily the discharge characteristic of acquisition device itself, pressure characteristic etc. and itself and blood
Influencing each other of liquid closed circuit, reaches the purpose to ventricular assist device integration test.
The above is preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from principle described in the utility model, it is also possible to make some changing
Entering and retouch, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the external integrated test system of ventricular assist device, including computer, data collecting system, drive system and simulation blood circulator circuit；Described computer is connected with described data collecting system and drive system；Described blood circulation simulating system is connected with described data collecting system and drive system；
Simulate the flow value of liquid in the force value of each predetermined point in blood circulator circuit and return described in described data collecting system Real-time Collection, and the force value collected and flow value are sent to described computer；
Described drive system receives the driving control instruction that described computer is sent, and regulates contraction frequency and the VE of the heart of simulation in described simulation blood circulator circuit according to this control instruction；
Described computer receives and shows force value and flow value that described data collecting system sends and is supplied to user by human-computer interaction interface, and receives tester and drive control instruction；
Described simulation blood circulator circuit has the closed-loop path of liquid-working-medium in being one, for the simulation blood circulation of human body system based on heart.
2. a kind of external integrated test system of ventricular assist device as claimed in claim 1, it is characterised in that described simulation blood circulator circuit includes:
First container of simulation left atrium；
Simulation links left atrium and mitral first valve of left ventricle, and described first valve input is connected with described first container outfan；
The second container of simulation left ventricle, the input of described second container is connected with the outfan of described first valve；
Simulation connects the second valve of the aortic valve of left ventricle and aorta, and described second valve input is connected with the first outfan of described second container；
3rd container of simulated aorta, the first input end of described 3rd container is connected with the outfan of described second valve；
The first-class gauge of fluid flow in monitoring aorta, the input of described first-class gauge is connected with the outfan of described 3rd container；
Blood first electromagnetic throttle valve of suffered resistance when human body flows that simulated aorta flows out, the input of described first electromagnetic throttle valve is connected with the outfan of described first-class gauge；
4th container of simulation right atrium, the input of described 4th container is connected with the outfan of described first electromagnetic throttle valve；
Simulation links right atrium and tricuspid 3rd valve of right ventricle, and described 3rd valve input is connected with described 4th container outfan；
5th container of simulation right ventricle, the input of described 5th container is connected with the outfan of described 3rd valve；
Simulation connects right ventricle and the 4th valve of Pulmonic valve of pulmonary trunk, and described 4th valve input is connected with the first outfan of described 5th container；
Simulating Pulmonic 6th container, the first input end of described 6th container is connected with the outfan of described 4th valve；
The second gauge of fluid flow in monitoring pulmonary artery, the input of described second gauge is connected with the outfan of described 6th container；
Blood second electromagnetic throttle valve of suffered resistance when human body flows that test lung tremulous pulse flows out, the input of described second electromagnetic throttle valve is connected with the outfan of described first-class gauge, and outfan is connected with the input of described first container.
3. a kind of external integrated test system of ventricular assist device as claimed in claim 2, it is characterized in that, being provided with piston and displacement transducer in described second container and the 5th container, the piston in described second container, the piston in the 5th container can by the first electromagnetic throttle valve, the compressed air-driven of the second electromagnetic throttle valve control or directly be driven by electric cylinder or cylinder respectively；
Piston in described second/the 5th container moves up and down in the second/the 5th container and drives the liquid-working-medium in described simulation blood circulator circuit to flow, and realizes closed loop control by described displacement transducer.
4. a kind of external integrated test system of ventricular assist device as claimed in claim 2, it is characterised in that described first-class gauge and second flow are calculated as electromagnetic type or ultrasonic type effusion meter.
5. a kind of external integrated test system of ventricular assist device as claimed in claim 4, it is characterised in that the measurement scope of described first-class gauge and second gauge is-5～15L/min.
6. a kind of external integrated test system of ventricular assist device as claimed in claim 2, it is characterised in that all parts of described simulation blood circulator circuit is connected by pipeline, and described piping connection portion uses threeway or four-way connection.
7. a kind of external integrated test system of ventricular assist device as claimed in claim 3, it is characterized in that, described simulation blood circulator circuit also includes several pressure transducers being installed on the threeway/four-way connection at predetermined point, for measuring the pressure of each predetermined point.
8. a kind of external integrated test system of ventricular assist device as claimed in claim 7, it is characterised in that the measurement scope of described pressure transducer is-50～200mmHg.
9. a kind of external integrated test system of ventricular assist device as claimed in claim 2, it is characterised in that the liquid-working-medium in described simulation blood circulator circuit uses human blood or animal blood or water-glycerol mixture simulation blood.
10. the external integrated test system of a kind of ventricular assist device as described in any one of claim 2 to 9, it is characterised in that the external integrated test system of described ventricular assist device also includes left ventricular assist device and/or right ventricular assist device；
The input of described left ventricular assist device is connected with the second outfan of described second container, and the second input of outfan and the 3rd container connects；
The input of described right ventricular assist device is connected with the second outfan of described 5th container, and the second input of outfan and the 6th container connects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620437816.5U CN205748951U (en) | 2016-05-12 | 2016-05-12 | A kind of external integrated test system of ventricular assist device |
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| CN201620437816.5U CN205748951U (en) | 2016-05-12 | 2016-05-12 | A kind of external integrated test system of ventricular assist device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784406A (en) * | 2016-05-12 | 2016-07-20 | 北京精密机电控制设备研究所 | Extracorporal integrated test system for ventricular assist devices |
| CN108612647A (en) * | 2018-06-13 | 2018-10-02 | 苏州心擎医疗技术有限公司 | The hydraulic performance test device of blood pump |
| CN113270018A (en) * | 2021-05-24 | 2021-08-17 | 哈尔滨工业大学 | A body lung blood circulation analog system for artificial organ test |
-
2016
- 2016-05-12 CN CN201620437816.5U patent/CN205748951U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784406A (en) * | 2016-05-12 | 2016-07-20 | 北京精密机电控制设备研究所 | Extracorporal integrated test system for ventricular assist devices |
| CN108612647A (en) * | 2018-06-13 | 2018-10-02 | 苏州心擎医疗技术有限公司 | The hydraulic performance test device of blood pump |
| CN113270018A (en) * | 2021-05-24 | 2021-08-17 | 哈尔滨工业大学 | A body lung blood circulation analog system for artificial organ test |
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Effective date of registration: 20200102 Address after: 300457 workshop b3-04, b3-05 and b3-06, No. 17, No. 80, Haiyun street, Binhai New Area, Tianjin Patentee after: Aerospace Tai Xin Technology Co., Ltd. Address before: 100076 Beijing City, Fengtai District Dahongmen South East Highland Road No. 1 Patentee before: Beijing Research Institute of Precise Mechatronic Controls |